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User-Agent: Mozilla/5.0 Galeon/1.2.7 (X11; Linux i686; U;) Gecko/20030131

Description of problem:
When using the aligned attribute on a typedef'd variable,
this attribute seems to get lost.

Version-Release number of selected component (if applicable):
gcc-2.96-113

How reproducible:
Always

Steps to Reproduce:
1. Compile the test code below
2. Observe incorrect output - 2nd structure member is not 8-byte aligned

    

Actual Results:  
sizeof my_struct 12
offset of foo in my_struct is 0
offset of bar in my_struct is 4


Expected Results:  
sizeof my_struct 16
offset of foo in my_struct is 0
offset of bar in my_struct is 8


Additional info:

I expect that this is a problem with the GCC in RHAS 2.1 as well, although
I do not have a 32-bit box with RHAS to test.

the gcc v3 compilers in Red Hat Linux 8.0 and later generate correct code.

gcc version 2.95.4 20011002 (Debian prerelease) from debian unstable
also generates correct code.

This may be related to gcc bug 3580,
bugzilla.redhat.com/bugzilla/show_bug.cgi?id=54724

----------

#include <stdio.h>
#include <sys/types.h>

#define ALIGN_8BYTE __attribute__((__aligned__(8)))

#undef offsetof
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)

#if 1 /* This way is broken */
typedef int64_t aligned_int64_t ALIGN_8BYTE;

typedef struct {
        int		foo;
        aligned_int64_t	bar;
} my_struct;
#endif

#if 0 /* It works fine this way */
typedef struct {
        int		foo;
        int64_t		bar ALIGN_8BYTE;
} my_struct;
#endif

int main(int argc, char **argv)
{
	printf("sizeof my_struct %d\n", sizeof(my_struct));
	printf("offset of foo in my_struct is %d\n",
				offsetof(my_struct, foo));
	printf("offset of bar in my_struct is %d\n", 
				offsetof(my_struct, bar));
	return 0;
}